Linear Hall effect sensor saves space in rotary and proximity detection applications
Diodes Incorporated supplies the AH4930, a linear sensor which performs 3D magnetic sensing with temperature compensation in a wide variety of switches, buttons and proximity detectors.
The AH4930 from Diodes Incorporated is a 3D Hall effect sensor which provides accurate measurement of linear displacement in small electronics systems such as joysticks, knobs and door handles.Â
Monitoring the magnetic field in all three axes, the AH4930 operates across an extended industrial temperature range of -40°C to 125°C. An integrated temperature sensor provides accurate on-chip compensation. The sensor’s robust signal path and 12-bit ADC enable precise measurement of magnetic fields, facilitating accurate decoding of motion and position information.
The AH4930 integrates user-programmable configuration registers for optimized performance. Data is accessible via an I2C interface, enabling seamless integration with host systems. The selectable power mode control unit allows for flexible operation: options range from micro-power modes when the system is sleeping to continuous measurement for demanding applications.